Given the answers; a) Reptiles b) Cactus plants c) Small birds d) Crabs and crayfish The answer is C. Small birds. On his visit to the Galapagos Islands, Charles Darwin discovered several species of finches that varied from island to Island, which helped him to develop his theory of natural selection.
An ecological community is made up of all the populations of all the different species that live together in a particular area. The interactions between different species in a community are called interspecific interactions, inter- means "between".
